Gillette fusion razor is the first and only shaving system that has revolutionary technology on the front and the back of the cartridge the 5 blade shaving surface technology has 5 blades spaced closer together to help reduce pressure for extraordinary comfort the precision trimmer blade is built into the back of the cartridge perfect for tricky places like sideburns under the nose and facial hair gillettes best shave amongst manual razors use with fusion or fusion power cartridges th